A 0.45 V low power high PSRR subthreshold CMOS voltage reference

Palamedu Sundaram, Prakash
2017-10
Thumbnail Image

View/Download File

PalameduSundaram_umn_0130M_18634.pdf (2.23 MB)

Persistent link to this item

http://hdl.handle.net/11299/209177
Statistics
View Statistics

Journal Title

Journal ISSN

Volume Title

Title

A 0.45 V low power high PSRR subthreshold CMOS voltage reference

Authors

Published Date

2017-10

Publisher

Type

Thesis or Dissertation

Abstract

Voltage references are broadly used in analog and digital systems to generate a DC voltage independent of process, supply voltage and temperature (PVT) variations. Conventional band gap references (BGR) add the forward bias voltage across a PN junction with a voltage that is proportional to absolute temperature to produce an output that is insensitive to changes in temperature. BGRs generate a nearly temperature independent reference, of about 1.25 V, and therefore they require a higher supply voltage, which might not meet the low voltage constraints for low-power applications such as passive RFID’s, wearable and implantable medical devices. Also, BGRs use resistors that need more area on silicon. One possible solution to meet the low power requirement is to operate MOSFETs in subthreshold region. Most often, forward biased PN-junctions of BGRs are substituted with MOSFETs biased in the subthreshold region and achieves a supply voltage down to 0.6 V.\par This paper presents a sub-1V voltage reference circuit that has only MOS transistors, all working in subthreshold region with a supply voltage down to 0.45 V and a supply current of 1nA at room temperature for ultra-low power applications. The circuit is designed and simulated in 0.13um technology.

Keywords

Description

University of Minnesota M.S. thesis. October 2017. Major: Electrical/Computer Engineering. Advisor: Ted Higman. 1 computer file (PDF); viii, 51 pages.

Related to

Replaces

License

Collections

Master's Theses (Plan A and Professional Engineering Design Projects)

Series/Report Number

Funding information

Isbn identifier

Doi identifier

Previously Published Citation

Suggested citation

Palamedu Sundaram, Prakash. (2017). A 0.45 V low power high PSRR subthreshold CMOS voltage reference. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/209177.

Content distributed via the University Digital Conservancy may be subject to additional license and use restrictions applied by the depositor. By using these files, users agree to the Terms of Use. Materials in the UDC may contain content that is disturbing and/or harmful. For more information, please see our statement on harmful content in digital repositories.